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2026-03-25 - 17:18
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Wed Mar 25, 2026 13:03:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
558499215210,2cyclictest0-21swapper/010:40:410
558499215210,2cyclictest0-21swapper/010:40:400
56279921460,149cyclictest0-21swapper/3507:25:1429
56279921460,149cyclictest0-21swapper/3507:25:1429
562799206199,3cyclictest3542-21CPU29
562799206199,3cyclictest3542-21CPU29
562799206199,3cyclictest3542-21CPU29
56159920372,127cyclictest37357-21CPU19
56159920372,127cyclictest37357-21CPU19
56159920372,127cyclictest37357-21CPU19
563199195182,11cyclictest0-21swapper/3910:53:5533
563199195182,11cyclictest0-21swapper/3910:53:5533
563199195182,11cyclictest0-21swapper/3910:53:5533
560999191185,4cyclictest0-21swapper/2109:09:4314
560999191185,4cyclictest0-21swapper/2109:09:4314
563199189177,10cyclictest0-21swapper/3909:28:5833
563199189177,10cyclictest0-21swapper/3909:28:5833
563199189177,10cyclictest0-21swapper/3909:28:5733
558499189186,1cyclictest0-21swapper/009:35:500
558499189186,1cyclictest0-21swapper/009:35:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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